Made search more efficient and tweaked weighting

Added per-entity weighting changes.
Now Books score higher than chapters which score higher than pages.

Reduced queries required on search by only searching once but at a
higher count to see if there's another page.

app/Entity.php

@@ -5,8 +5,16 @@ use Illuminate\Database\Eloquent\Relations\MorphMany;
 class Entity extends Ownable
 {
 
+    /**
+     * @var string - Name of property where the main text content is found
+     */
     public $textField = 'description';
 
+    /**
+     * @var float - Multiplier for search indexing.
+     */
+    public $searchFactor = 1.0;
+
     /**
      * Compares this entity to another given entity.
      * Matches by comparing class and id.
@@ -193,4 +201,5 @@ class Entity extends Ownable
     {
         return '/';
     }
+
 }